Determination of trace elements in macrozoobenthos samples by total reflection X-ray fluorescence analysis

2001 ◽  
Vol 56 (11) ◽  
pp. 2203-2207 ◽  
Author(s):  
Hermann Miesbauer ◽  
Günter Köck ◽  
Leo Füreder
Keyword(s):  
Trace Elements ◽  
Fluorescence Analysis ◽  
Total Reflection ◽  
X Ray

Determination of trace elements in rainwater by total-reflection x-ray fluorescence

1985 ◽  
Vol 57 (14) ◽  
pp. 2880-2885 ◽  
Author(s):  
Rolf Peter. Stoessel ◽  
Andreas. Prange
Keyword(s):  
Trace Elements ◽  
Total Reflection ◽  
X Ray ◽  
Elements In Rainwater

Slope-Ratio Technique for the Determination of Trace Elements by X-Ray Spectroscopy: A New Approach to Matrix Problems

1968 ◽  
Vol 22 (4) ◽  
pp. 321-324 ◽  
Author(s):  
Frank Cuttitta ◽  
Harry J. Rose
Keyword(s):  
Trace Elements ◽  
Matrix Effects ◽  
Fluorescence Analysis ◽  
Slope Ratio ◽  
New Approach ◽  
X Ray ◽  
Standard Curve ◽  
Residual Matrix ◽  
Matrix Problems

A new approach to solving matrix problems in x-ray fluorescence analysis of trace elements has been applied to the determination of bromine in saline waters and zinc in silicates. The method requires no prior knowledge of the chemical composition of the sample. Marked matrix effects are minimized by dilution, and the problem of variable backgrounds due to residual matrix effects is solved by using a slope-ratio technique. In this proposed technique, the slope of a standard curve prepared from pure solutions is compared with that of spiked samples. The ratio of the slopes of these two curves permits the calculation of an adjusted background which does not significantly differ from that of an absorbent impregnated with the sample matrix free of the element sought. Experimental parameters concerning the technique are presented. The excellent agreement of the zinc and bromine data with analytical results obtained by more conventional methods suggests that the technique can be used for the determination of other trace constituents in geologic materials. Application of the slope-ratio technique to other modes of instrumental analysis appears feasible.

Determination of Heavy Metals in Damascus Drinking Water Using Total Reflection X-Ray Fluorescence

1999 ◽  
Vol 34 (2) ◽  
pp. 305-316 ◽  
Author(s):  
E.H. Bakraji ◽  
J. Karajo
Keyword(s):  
Trace Elements ◽  
Drinking Water ◽  
Total Reflection ◽  
World Health ◽  
X Ray ◽  
Quality Guidelines ◽  
The World ◽  
The Mean ◽  
Health Organization

Abstract Total reflection X-ray fluorescence spectrometry and chemical preconcentration have been applied for multi-elemental analysis of Damascus drinking water. Water was taken directly from taps of several city sectors and analyzed for the following trace elements: Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Se and Pb. The detection limits were found to be in the range of 0.1 to 0.4 µg/L. The mean levels of trace elements in the Damascus drinking water were below the World Health Organization drinking water quality guidelines.

Determination of lead at physiological level in human biological materials using the total reflection X-ray fluorescence analysis

2016 ◽  
Vol 45 (6) ◽  
pp. 318-324 ◽  
Author(s):  
A. Kubala-Kukuś ◽  
D. Banaś ◽  
U. Majewska ◽  
I. Stabrawa ◽  
J. Wudarczyk-Moćko ◽  
...  
Keyword(s):  
Fluorescence Analysis ◽  
Biological Materials ◽  
Total Reflection ◽  
Physiological Level ◽  
X Ray
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